Question Detail

The metal used to recover copper from a solution of copper sulphate is ?

Na
Ag
Hg
Fe

Answer: Option D

Similar Questions :

1. Which is also called Stranger Gas ?

Xenon
Neon
Argon
Nitrous oxide

Answer: Option A

2. A catalyst is a substance which

increases the activation energy
increases the rate of reaction and increases the equilibrium concentration of products
changes the equilibrium of a reaction so that the concentration of the product increases
hastens the attainment of equilibrium

Answer: Option D

3. All noble gases are ?

colourless
colourless
colourless and odourless
colourless and but have odour

Answer: Option C

4. Acid rain is due to air pollution by ?

Carbon dioxide
Carbon monoxide
Methane
Nitrous oxide and Sulphur dioxide

Answer: Option D

5. Which one of the following gas is readily soluble in water at room temperature ?

chlorine
nitrogen
ammonia
carbon dioxide

Answer: Option D

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